Syn Free Onion Bhaji | Slimming World Recipe

Onion Bhajis are my all time favourite Indian side dish.. a curry isn’t complete without one. This recipe is not only Slimming World friendly it is completley Syn Free. 

Bhajis are so much easier to create than you would expect and once you have mastered making them from scratch you will never buy from a supermarket ever again. With simple ingredients, these bhajis are guilt-free and vegetarian-friendly. You don’t need to buy any fancy ingredients, it is fairly likely that you will have most of the ingredients in your cupboard already.

The key to a great onion bhaji is to slice the onion very finely – this is important so the onion will have plenty of time to cook. No one wants rock hard onion in their bhaji! This is a messy recipe to create, so if you have kiddos who love Indian food this is a great one to get them involved in. 


  • Tasty
  • Quick and easy to make
  • Cheap
  • Syn Free
  • Perfect for the whole family


Absolutely! They will keep In the fridge for up to 5 days or in the freezer for 2 months. To reheat either pop in your actifry with the blade removed for 3 minutes or in the oven on 180c for 5 minutes. Remember to defrost thoroughly before reheating. These are perfect cold snacks for the lunch box too!!

Onion Bhaji

Slimming World Syns: Zero
Weight Watchers: Coming Soon
Calories: 56 Per Bhaji
Course Main Course, Side Dish, Snack
Cuisine Indian
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings 6


  • 1 Muffin Tin


  • 1 Large White Onion (Very thinly sliced)
  • 1 Large Red Onion (Very thinly sliced)
  • 1 Sweet Potato (Peeled and grated)
  • 2 Eggs (Beaten)
  • 1 tbsp Mild Curry Powder
  • 1 tsp Turmeric
  • 1 tsp Garam Masala
  • ½ tsp Mild Chilli Powder
  • Large Pinch Salt
  • Frylight


  • Pre heat oven 200c/180c fan/Gas 6 (or these can be cooked in your Actifry)
  • Prepare the onions and grate the sweet potato. Remember to slice onions as thinly as possible. Place in a bowl and mix together.
  • Add Curry Powder, Turmeric, Garam Masala, Mild Chilli Powder and Salt. Mix together well ensuring all of the ingredients are covered in the spices.
  • In a separate bowl crack the eggs and beat well with a whisk or fork.
  • Add the egg into the bowl with onion and potato. Combine together with a wooden spoon.
  • Spray muffin tin with Frylight to avoid sticking.
  • Use your hands to divide the mixture into 6 and shape into Bhaji shapes. Place each Bhaji into a muffin sections of your tin. Spray with a generous amount of Frylight and place into the oven for 20 – 25 minutes or until golden and crispy. Flip carefully half way through cooking.
  • Alternatively these can be placed into an Actifry with the blade removed and cooked for 15 – 20 minutes.

Have you created this recipe?

Please let me know how it turned out! Leave a comment below or share a photo on Instagram tagging me at @fatgirlskinny__ and the hashtag #fatgirlskinny.

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4 Responses

  1. susanne gillespie says:

    Do you cook the sweet potato first

  2. Kylie says:

    Can you use a normal potato if you haven’t a sweet potato ?

    • Fatgirlskinny says:

      Normal potato doesn’t have the same consistancy as sweet potato and with the added starch would not have the same effect. I would stick to the recipe 100% for the best results.

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